Australia-northwest Coast
Indian Ocean · HYDROPAC 1602/12
What this record establishes
Archived notice · 2012-08-02 20:41Z
This notice comes from the historical archive. Its archived status does not establish when or how the reported situation ended.
- Source and dates
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · AUSCOAST 154/12 080449Z JUN 12.. Issued 2012-06-08 05:29Z. First collected 2026-08-17 13:38Z; last seen in collection 2026-08-17 15:46Z. Collection dates record ingestion, not a new incident or a fresh field observation.
- Location covered
- Indian Ocean. The parsed report position is -12.656, 124.540. It is a position in the source message, not a live location. Check the original wording for limits and qualifications.
Related notices and cancellation links
- Cancel HYDROPAC 1602/12 and this msglater cancellation notice
- issued
- 2012-06-08 05:29Z
- status
- Archived notice
- authority
- AUSCOAST 154/12 080449Z JUN 12.
- issued by
- AUSCOAST
- sea
- Indian Ocean
- position
- -12.656, 124.540
- source
- NGA MSI broadcast-warn JSON (archive, frozen 2024-05) · first seen 2026-08-17 13:38Z
Original warning text
EASTERN INDIAN OCEAN. AUSTRALIA-NORTHWEST COAST. CHART 74451 SUBMERGED OBSTRUCTION VICINITY 12-39.35S 124-32.41E.
Reading this warning
- Chart reference
- The number of the nautical chart on which the reported position lies.
- Submerged obstruction
- Something on or near the seabed that could damage a ship, an anchor or fishing gear — its nature often unknown.
- Position (degrees and minutes)
- How warnings write positions: degrees, a hyphen, then minutes, with N/S and E/W — 49-40.8N 003-43.8W.
Collected reports in this area · wrecks & obstructions
7 within 180 nm since 2004 · 0 in the last 12 months · 0 listed in force now
Counts include repeat notices about the same situation. NGA archive coverage ends 2024-05; live collection began 2026-08-17. The period between them is incomplete. An empty year is not evidence that no hazards occurred.
- Dangerous wreck in 11-58.28S 122-35.90E2017-02-10
- Obstruction, 20 meters below surface, in 13-06.2S 123-17.5E2014-10-24
- Australia-northwest Coast2012-12-19
- Nga chart 74451 (2ND ed)2010-09-21
- Nga chart 74455 (3RD ed)2007-09-10
- Vessel sank in 12-24.5S 124-36.5E at 240420Z dec2004-12-24
Month of issue in the collected archive
All available years combined. Uneven collection and repeat bulletins affect these counts; this chart does not measure the seasonality or probability of incidents.
Nearby notices listed in force · within 120 nm
- Underwater operations in progress until further notice by M/V safe boreas in area bound by 12-54.90S…Surveys · 18.2 nm
- Special purpose vessel safe boreas 565905000 supporting underwater operations in an area bounded by…Surveys · 18.2 nm
- Special purpose vessel shark 1/T2DT6/572762220 conducting hydrographic survey in an area bounded by 11-30.00…Surveys · 73.4 nm
Worldwide in the collected sources
38 wrecks & obstructions listed in force · see all
Record snapshot 2026-10-01 13:19Z; source collection times vary.
Wrecks
Dangerous wrecks, shoals and submerged obstructions. All current wrecks & obstructions →
Not for navigation. This is a re-rendering of an official navigational warning for awareness; mariners must use official NAVAREA broadcasts and their national MSI service.